<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        html,body,.app {
            height: 100%;
        }
        .app {
            background-color: #ddd;
        }
        .app-box{
            width: 100%;
            height: 200px;
            overflow-y: auto;
        }
        .app-box-data {
            height: 510px;
            background: linear-gradient(to left bottom, hsl(160, 100%, 85%) 0%,hsl(4, 100%, 85%) 100%);
        }
    </style>
</head>
<body>
    <div class="app">
        <div class="app-box">
            <p class="app-box-data"></p>
        </div>
    </div>
</body>
</html>